Re: [time-nuts] Tait reference

Good news - my purchase arrived quickly, contains an FE5660A 10MHz oscillator and shows both the internal standard lock light and the internal reference lock light within a few minutes. It runs from 13.8 volts and takes about 1.2A. The f1 and f2 lock lights don't come on, but that's not a big

Re: [time-nuts] Tait reference

Are these the references with a rubidium oscillator ? They seem to have similar models with OCXOs etc. http://www.ebay.co.uk/itm/111862884745 --- Well now, how's this for a happy coincidence. I've just received an email from a friend

Re: [time-nuts] Tait reference

That's a very happy coincidence and one I'd hoped to hear. The pictures in the auction seem to show a lack of tarnish on the Ref Out and Ref In BNCs which suggests they have had plugs on them, looping the internal reference, other little bits of information also pointed to that, the remnants of a

Re: [time-nuts] Tait reference

If so, let's hope the sudden surge of purchases will encourage the dealer to find some more :) On Tue, Jan 12, 2016 at 1:39 PM, Clint Jay wrote: > That's a very happy coincidence and one I'd hoped to hear. > > The pictures in the auction seem to show a lack of tarnish on

Re: [time-nuts] Tait reference

Thank you Nigel, I've also taken a gamble on one of these units and am keeping my fingers crossed that it has a Rb standard in it. The service manual is most interesting, it looks like I could use one of the two 'loops' to lock a different OCXO, with a little tinkering it could be a very

Re: [time-nuts] Tait reference

Yes, i found that description and it put me off buying one. But there are also references on the web (including time-nuts archive) to surplus T801s with rubidium sources. Anyway, I took a punt and bought one. So I'll find out soon :). On Mon, Jan 11, 2016 at 11:18 AM, Charles Steinmetz

Re: [time-nuts] Tait reference

To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Monday, January 11, 2016 4:00 PM Subject: Re: [time-nuts] Tait reference Hi Unless we are looking at different auctions, that one appears to want 13.8 V at <= 5A as the supply. Th

Re: [time-nuts] Tait reference

Hello, Tait T800 is a series of mobile radio repeaters, so probably the T801 could be a unit intended for iso-frequency networks, in which there are several repeaters are distributed in a wide area operating all at the same frequencies with a very tight tolerance. BNCs and 13.8V power

Re: [time-nuts] Tait reference

http://download.wrx.sk/pdfs/tait/Networks/Quasi.pdf says: Quasi-Sync works by broadcasting simultaneously from several transmitters on the same frequency. The transmitters then operate as a single transmitter giving superior coverage. A Tait T801 Frequency Reference Module accurately maintains

Re: [time-nuts] Tait reference

y measurement" <time-nuts@febo.com> Sent: Monday, January 11, 2016 1:11 PM Subject: Re: [time-nuts] Tait reference Yes, i found that description and it put me off buying one. But there are also references on the web (including time-nuts archive) to surplus T801s with rubidium sources.

Re: [time-nuts] Tait reference

Are these the references with a rubidium oscillator ? They seem to have similar models with OCXOs etc. http://www.ebay.co.uk/itm/111862884745 Hi Adrian, The T801 first seems to have hit the UK surplus market around 2005/2006, I was told a batch of a couple of hundred, and units from that

Re: [time-nuts] Tait reference

: Re: [time-nuts] Tait reference The T801 units I have seen in the UK contained a rubidium 10MHz reference (FRS form factor) and a synthesizer that could produce several outputs of a nominal 12,8MHz, but which could be individually offset slightly to allow for precise offsetting of the transmitter

Re: [time-nuts] Tait reference

The T801 units I have seen in the UK contained a rubidium 10MHz reference (FRS form factor) and a synthesizer that could produce several outputs of a nominal 12,8MHz, but which could be individually offset slightly to allow for precise offsetting of the transmitter frequencies by a few Hz for use

Re: [time-nuts] Tait reference

Adrian wrote: Are these the references with a rubidium oscillator ? They seem to have similar models with OCXOs etc. Tait is a manufacturer of mobile communications gear in New Zealand. The T801 was part of a discontinued "quasi-synchronous communications system" -- a form of simulcasting

Re: [time-nuts] Tait reference

Thank you Nigel, I've also taken a gamble on one of these units and am keeping my fingers crossed that it has a Rb standard in it. The service manual is most interesting, it looks like I could use one of the two 'loops' to lock a different OCXO, with a little tinkering it could be a very useful

Re: [time-nuts] Tait reference

What little I can tell is they are telco references so there may be something good inside OCXO or RB. It looks like it runs on -48VDC from the ebay pix. Its output could be any of the typical telco references that are not 5 or 10 MHz. These are pure guesses. The Price seems reasonable. Good luck

Re: [time-nuts] Tait reference

Hi Unless we are looking at different auctions, that one appears to want 13.8 V at <= 5A as the supply. The BNC’s are also a fairly rare item in the Telco inventory (but not unheard of). If I had to bet, I’d say it’s a piece of mobile video gear. I would not bet anything over about a nickel